Adding-machine, &amp;c.



Patented Apr. 23, 1912.

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Patented Apr. 23, 1912.

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Patented Apr. 23, 1912.

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Patented Apr. 23, 1912.

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1 ,O24,397, Patented Apr. 23, 1912.

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ADDING MACHINE, 6w. APPLICATION FILED 00m. 16, 1901.

Patented Apr.23, 1912.

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ADDING MACHINE, 6m. APPLICATION FILED OCT. 16, 1901.

1,024,397. Patented Apr.23, 1912.

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WITNESSES; INVENTUR HIE TTEIRNEY A. H. ELLIS.

ADDING MACHINE, 6w. APPLIOATION I'ILBD 00T.16, 1901.

Patented Apr. 23, 1912.

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ADDING MACHINE, 6w.

- APPLICATION FILED 001:. 16, 1901,

1,024,397. Patented Apr. 23, 1912.

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"UNITED STATES PATENT OFFICE.

ALBERT H. ELLIS, OF NEW YOI RK N. Y., ASSIGNOR TO WYOKOFF, SEAMANS-& BENEDICT,

- OF ILION, NEW YORK, A CORPOMTION OF NEW YORK' ADDING-MACHINE, 8w.

To all whom it may concern:

Be it known that I, ALBERT HQ ELLIS, citizen of the United States, and resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and.

' of this description in which the work re- ,quired of the operator is reduced to the.

minimum and substantially all of the work, except the striking of the keys, accomplished by means of power mechanism set in operation by the actuation of, such keys. 7

While my improved adding mechanism is capable of use either alone or in conjunction with a listing machine having figure keys only, it is especially designed'and intended to be used as an adding attachment in connection with an ordinary Remington typewriting machine having both figure keys and letter keys. When an adding mechanism is employed in this manner it is desirable that it be capable of operating at ahigh rate of speed; that it be adjustable for operation at any part of the line of writing, and that its operation shall involve no increase in the power required to operate the figure keys of the typewriter nor change in mode of operation of the typewriter.

My present invention 1s in the nature of an improvement upon that shown, described and claimed in my prior application filed November 1, 1899, Serial No. 735,449, in which I have illustrated an adding mechanism capable of use either alone, when controlled by keys or similar devices, or as an attachment in connection with a typewriting machine.

While the same general results are attained with the mechanism illustrated in my prior application, viz., the combinationv of a group of figure keys and an adding mechanism in such a manner as to enable the operator to'strike figures consecutively representing the elements of the sums to be added, and the selection of a different adding wheel for each figure so struck, in order that the elements of such sums may be added I by said wheels in the proper order, yet the mechanism by means of which such results.

Specification of Letters Patent.

Application tiled October 16, 1901. Serial No. 78,834.

Patented Apr. 23, 1912.

are secured in the present case varies in detail construction from that shown in my prior application. It is much more rapid in operation and its parts are so organized -as to work with greater certainty and case of action.

One .of the principal features of the mechanism shown in my prior case is an automatic controlling device on the typewriter for transferring the adding operation from one adding wheel to another as successive figure keys are struck by the operator, and in connection therewith I have shown in said prior case how a series of figures may be writ-ten with punctuation marks at the proper points between the figures without interfering with the adding operation. These features are retained in the present case, but herein I havevprovided means for varying the connections between relatively fixed contact points of the con-- troller device and the adding wheels instead of removing and adjusting said cont-act points as inmy prior machine. This change of the connections between the different contact points just referred to and the adding wheels is preferably effected electrically by means of a switchboard and a single multipole switch having groups of contacts so connected as to permit the switch, when 5 shifted, to? connect one or more series of such contact points with a series of adding wheels corresponding to the number and order of the figures-in the ,sum to be registered and added.- By means of such a switchboard and switch sums may be added either with or without spaces .for punctuation marks between the figures at the usual points.

The means which have been provided in the present case for varying the style of punctuation, are an improvement over the means shown in my earlier application hereinbefore specified in tworespects. In said earlier application the punctuation was 00 varied by moving the several contact points or pieces of the carriage-controlled circuit slots and thus made to bring the corresponding adding wheel into operation at diflerent points in the winding, depending on which slot "the contact point is put into. By the present invention the change from one style of punctuation toanother, is made by means of a single adjustable part which controls all of the electric circuits, as distinguished from making such variations by moving a part of each circuit separately. In the second place, the present construction is an improvement in that the part that. is'adjusted .to vary the style of punctuation, is not the contacts whose action depends on the movement of the carriage, but the adjustment is made at a point in the electrical connections between the contact points and the adding plurality of positions, and when said part is set to one position the machine is arranged for one style of punctuatlon and when said part is set to another position the machine is arranged for another style of punctuation, this single part controlling a plurality of wheels; and I also have claims to the feature of varying the connections between the controller contacts and the adding wheels, as distinguished from varying the controller contacts themselves. The earlier case is intended to cover broadly any means for varying the spacing of the printing.

In every adding mechanism a carrying device for carrying forward from one order to another the excess not registrable by any given wheel is a necessary element, and in carrying devices as generally heretofore constructed it has been customary to impose upon the adding wheel from which the excess is to be transferred the work of operating the wheel representing the next hi her order, and this, of course, necessitates the application of more ower to the lower wheel when such big er wheel is to be turned. For the purpose of avoiding this, I make use in the present case, of a carrying device capable of carrying from one order to the next without imposing upon the first of such two wheels-the duty of actuating the second. In my present machine I employ a spring-actuated carrying device which normally is latched under tension by a detent mechanism and is automatically tripped or released by the wheel of the lower order at the proper time for carrying to a wheel of a hi her order, said carrying de. vice through t e tension of its spring turning said wheel of the higher order. For

the purpose of resetting or restoring the said carrying device to 1ts normal position and relatching ,it therein, I employ .means operated by an entirely-independent power from that used for effecting a rotative move-v ment of the wheels and also from that emator.

ployed to actuate the carrying device when 1t makes its operative stroke, thus enabling each wheel to be turned with the minimum of power and at the maximum of speed. When a carrying device of this style is used in connection with a key-operated machine, and especially a typewriter of any wellknown construction, it will be seen that the keys may be employed as the means for controlling the adding movements of the wheels without actually performing the work of turning the same, and that this turning also may be produced from a source of power other than the finger movement of the oper- In such a case it will be evident that an adding mechanismresults in which both the units adding movements and the carrying movements of the wheels are effected by power independent of the power which operatesthe keys, and also that the power for turning the wheelsto impart the ordinary digit adding movements thereto is independent of that for accomplishing the carryin movement.

n order to produce the units adding movements of the adding mechanism, I prefer to employ a mechanism having a plurality or series of adding wheels normally disconnected from, but capable of being quickly connected to, a common actuator or shaft having a turning movement which may vary according as the number to be registered is one or another of the nine digits, the movement of the shaft being therefore one, nine, or any intermediate number of feed units corresponding to the figure struck. Each of these wheels is preferably associated with the rotary actuator in such a manner as to be instantly connected.

thereto at the beginning of an addin movement, and as quickly released there rom at the end thereof, each wheel having in the present case one member of a clutch and the actuator having the other or complementary members ofall of such clutches, suitable selecting means controlled by the respective keys, and embod ing the automatic controlling device herembefore referred to, being employed to determine which one of the ad ing wheels shall be coupled with said actuator when any key is struck, it being obvious that owing to the transfer of the control of the adding operation from one adding wheel to another that particular adding wheel which re resentsthe order of the number struck wil always be the one selected. Hence it will be seen that while the controllin device referred to may be employed as the means for transferring the control of the addin o ration from one order to another, an adding wheel representing one order to an other wheel representing another order, the keys themselves. may serve as the (means for indicating the extent of movement of t erefore from one in writing any given number, is especially rotation ,of this common actuator is de' 5 termmed 1n a manner somewhat analogous to that illustrated in my said prior application, but in this case instead of employing a V series of stop devices in connection with a series of independent wheel drivers, the series of stop devices in the present machine co-acts with a single rotary actuator variably to arrest the movements thereof. Furthermore I provide means for preventing backlash of each addingwheel and for returning each adding wheel to normal position on an over-rotation thereof.

, My improved controlling device for transferring the control of the adding operation from one order to another, as digits of different orders are selected one after another I designed and intended in the present construction for cooperation with a suitable tabulating device, in order to permit the carriage to be shifted quickly \to any desired tabulating point and the controlling device brought into action at such point'by' the engagement of one member. of the controller moving with the carriage with a complementary member of such controller at an adjacent relatively fixed point. Hence, when a tabulating device and my improved controlling device having a plurality of controlling points or contacts are combined, any desired matter maybe written in a line before reaching the tabulating point and the .carriage then shifted quickly to such tabulating point by operating the proper t'abulating push rod or key, whereupon the controlling device, which'up to that time remained out of act-ion, will be brought into operative condition by the engagement of the controller member or cont-act arm on the carriage with the corresponding point or contact of the series usually mounted on the framework.

I have had various other objects in View in the construction of my improved adding machine and its combination with a typewriting machine, all of which will hereinafter appear in connection with the description of said machines and their modes of operation, but it may be remarkedhere that I have'provided'novel means for resetting -55 all of the adding wheels to their zero posi tionyand means whereby the electrical connections between the typewriting machine and the adding machine may be conven iently ttached or detached according as to whether the adding machine is to be used ornot. K. H

Figure 1 is a front elevation of an adding mechanism embodying my invention with the outside casing removed and parts removed and broken away to show the conother.

. struction clearly. Fig. 2 is a front elevation of the same with some of the parts removed, and shows the main solenoid for turning the wheel-actuating shaft together with the parts cooperating with such solenoid. Fig. 3 is a plan of the same with the casing and other parts removed or broken away, and illustrates generally the manner in which the wheel-selecting devices, the stroke-determining devices, the solenoid for the wheel-actuating shaft, and various other parts are organized with respect to one anof the same, the section being taken in line XX of Fig. 3, looking from the right, and illustrates in detail a carrying device and cooperating parts and also the switch-board and the connections of the electro-magnets and the main solenoid thereto. Fig. 5 is a sectional end elevation of the same, looking from the right in Fig. 3 with the end partition removed, and shows the manner in which the wheel-actuating shaft is rotated different distances by the operating mechanism controlled by the various stop-arms. Fig. 6 is a sectional end elevation of the same, looking from the left in Fig. 3, with the last partition removed, and shows the parts controlling the movements of the carrying device and also the relay for throwing the main solenoid into and out of action. Fig. 7 isa rear elevation of the adding mechanism with the casing removed, and illustrates a switch-board and connections for. governing the circuits tothe various electrically-operated arts. Fig. 8 is a cross section of said switchboard on line 2, z of Fig. 9. Fig. 9 is a front elevation ofsaid switch-board, showing the manner in which the different groups of terminals are" Fig. 4' is a sectional end elevationconnected. Fig. 10 is a longitudinal section of said switch-board, the section being taken in line Y Y of Fig. 9. Fig. 11 'is an isometric view, showing the resetting mechanism and some of the wheels co-acting therewith. Fig. 12 is an isometric detail, illustrating a carrying device co-acting with one of the adding wheels. Fig. 13 is a sectional end elevation of a double-case typewriting machine adapted to co-act with, and control the operation of, the adding mechanism and" illustrates various electrical circuits. and oilwriter. Fi 14 is an enlarged plan of the majorportion of said typewriter and illustrates particularly the manner in which the cuit-controlling devices carried by the type- 1 automatic electrical controller cooperates with the tabulating device and with the column gage of the typewriter. Fig. 15 is a sectional plan of the rear portion oft-he base of the 'typewriting machine and illustrates a contact box andcontacts or terminals controlled by the figure keys together with'circuit-breakers or switches controlled by the shift device and shift-key of the typewriter. Fig. 16 is a detail illustrating in rear elevation a detachable insulating plug for connecting the typewritingmachine electrically with the adding mechanism. Fig. 17 is a detail illustrating in front elevation circuit-controllers governed respectively by a hand switch and by the shift-key of the typewriter for electrically disconnecting the writing machine and the adding mechanism when upper-case characters are to be written. Fig. 18 is a diagram of the various electric circuits and all of the parts included therein. Fig. 19 is a erspective view of the adding mechanism lnclosed'in a suitable case having a sight opening with. shiftable pointers or punctuation-indicators settable to proper points between different adding wheels. Fig. 20 is a rear elevation of the same, showing an index plate and indicator for setting the multipole switch to any one of its different posit-ions. 21 is a detail illustrating in front elevation a contact block forming the principal mem: ber of the electrical controller for transferring the registering-operation from one adding wheel to another; and Fig. 22 is a side elevation, partly in section, of a' tabulating 'device associated with cooperating parts of a typewriting machine. I

Referring first toFigs. 13 to 17 inclusive, and to Figs. 21 and 22, I have showna Remington N0. 6 typewriting machine with suitable additions for the purpose of adapting it for use in connection with an adding mechanism embodying my invention, although of course it should be understood that said addinginechanism may be controlled merely by keys without the interposition of typewriting mechanism between them and such adding mechanism. In this embodiment of my invention the base of the typewriter is designated by 2, and has the usual posts 3 rising therefrom and supporting a top plate 4, on which is mounted a carriage 5 supporting a platen 6, the carriage with its platen being shiftable in the usual manner by means of a lever 7 pivoted at 8 1n hangers 9 depending from the topplate 4 and connected at its lower endin some suitable manner to a shift-lever 10 to which a shift-key 11 is attached, the connection in this case beingefl'ected by means of a short. rod or link 12. The ordinary key levers of the machine for letters, figures, etc, are designated by 13 and are pivoted in the usual manner at 1 1 and held up in their normal positions by springs 15, all of said keys serving to operate corresponding double-ease type-bars 16 pivoted in hangers 17 on the top plate and joined byconnecting-rods 18 to the key levers 13. These key levers also control the operation of a universal-bar, such as 19, suspended by means of connecting-rods or hooks 20 from arms 21 of a rock-frame carried by a rock-shaft &

Fig.

22. The upper arm 23 of said rocker frame controls one member 2 .1 of an escapement, the scape-wheel 25 of. which transmits its movements in the usual manner through a pinion 26 to the usual rack on the carriage 5 to impart a step-by-step movement to said carriage. The rocker-frame just described has another arm 27 depending therefrom for a purpose which will be, hereinafter stated. The adding mechanism in this construction will becontrolled by the figure keys 13 of the typewriting machine, these keys serving to operate electrical contact devices by means of which corresponding circuits to the adding mechanism are made or broken to control the starting and stopping of each separate "adding-movement. The contact devices, which are controlled by the keys, are preferably mounted in a box 28 of insulating material, which may be secured to the back shelf 29 of the typewriter in such a manner as to be readily removable therefrom. This contact box is so positioned as to span the figure-key-levers 13 and has nine contact-arms or springs 30 therein, one for each figure-key-lever. These contact springs have a downward tension and are located .in the vertical planes of their respective key-levers. Each of these contact springs is associated with its key-lever in such a manner as to be pivotally adjustable relatively thereto and also adjustable with respect to a cooperating contact, which in this case is a contact bar 31 common to all of the contact-springs 30. I prefer to effect the adjustment of each of these contactsprings by means of a threaded rod 32 having the lower end resting on its proper keylever while the upper end passes through a threaded nut-like portion secured tothe free end of the contact-spring 30, the rod 32 by its position regulating the distance which the spring 30 will have to move down before it makes contact with the bar 31. In this construction the key levers do not force the contact springs 30 into engagement with the bar 31, but instead release the contact springs by withdrawing or lowering .the supports (thekey levers) which in theirnormal posit-ions through the rods 32, hold the springs against their tension and away from the bar 31, so that when a key lever is depressed, the tension of one of the springs bar 31. Hence the depression of a figurekey lever involves no extra work of any kind, there being no additional resistance opposed to its movement. Each of the contact-springs 30 is connected by means of a binding-screw 34 to a corresponding contact terminal 35, nine of such terminals being is relieved and it makes contact with said .120

(see Fig. 15), this being done in the present case through a switch device (hereinafter described) controlled by the shift-key of the typewriter and operative to break the circuit whenever the carriage is shifted to the upper-case position, it being understood thatthe universal bar 19 and rocker arm 27.

This rocker-arm passes through-an opening 37 inthe cover of the contactbox 28 and at its lower end oscillates back and forth within said box. The spring contact 38 is secured to the common contact bar and is normally flexed or held under restraint by the pres- '7 an opening for the reception of a detachable points.

sure of the arm 27 under the tension of the rocker spring 27, the lower end of said arm being preferably provided with ascrew 41 whose insulated point bears against the side of said spring 38 to keep the contacts 39 and 40 normally separatd- When, however, any key is str'uck the arm 27 moves rearwardly and the points 39 and 40 are permitted to come into contact so as to close thelcircuit at this locality. The parts'are so disposed in time as that a spring 30 makes contact with the commoncontact bar 31 'ust before the contacts 39 and 40 touch an thus complete the circuit, and on the retu'rnof the parts to normal position the contacts 39 and 40 separate slightly in ad-- Vance Of the contacts 30 and 31. Thus it will be seen that inasmuch as the circuit is broken before the contacts 30 and 31 are parted, there can be no sparking at these In the top of thecontact box 28 there is insulating plug 42 (see Figs. Band 16) from which depend, contacts, preferably spring-arms 43 at least equal in number to the number of figure keys and their contacts, these spring-arms 43 makingwontact with the circuit-terminals 35 when the typewriting machine and the adding mechanism are connected. The adding mechanism may be entirely disconnected from the typewriting machine and set aside, if desired, by removin the plug 42 from the contact box 28, this being accomplished in the present case by removing a locking pin 44, which passes through registering openings in the plug; when the plug is in its working positionand by removing the adding wheel selectingcontroller hereinafter, referred to. In addition to the spring-arms 43 there another arm 45, which may be similar in every respect to those shown at 43 but which will contact with the terminal 36. These two contacts 45 and 36 are connected in series in the main circuit and whenever the circuit through .them is broken of course the adding mechanism and the writing machine will be electrically disconnected.

Hence if a circuit from the contact '36 through the common Contact bar 31 and contacts 39 and 40' is broken at another point, it is evident that said mechanisms will be electrically disconnected regardless of whether thelbreak controlled by the universal-bar-operated contact is closed, or whether that controlled by the key-operated contact is closed. Such an additional break is the preferred means employed by me for disconnecting said mechanisms electrically when the carriage is shifted from one case position representing the figure keys to another or' upper-case position. This extra break in the circuit may be governed by a hand-switch or by a contact controlled by the shift-key 11 or by both.

In the construction shown in Figs. 13, 15

and 17, two electrical conductors lead respectively from the terminals 36 and 40 to another pair of terminals 46 and 47 and are preferably insulated 'wires 48 and 49. The connection between the terminals 46 and 47 may be governed by a duplex circuitcontroller consisting of a contact-arm 50 secured to a suitable support 51 and a hand switch 52 for operating the arm 50. The two arms 50 and 52 are intended to come into contact respectively with the terminals 47 and 46, and in order to close the circuit between said terminals it is necessary that both of said arms be in engagement with their terminals: The terminal or post 46 has a projection 53 forming a stop for the hand switch 52 and the latter is cut away at 54 to hold it securely in place. The arm 50 is normally in engagement with the under side of its contact 47, but it may be depressed by the shift-key and the circuit broken at such point by putting said arm 50 under tension. In this construction the de pressionof the end of the spring-arm 50 is effected by means of a member carried by the connecting-rod 12, a circuit-breaking block 55 being adjustably clamped to said rod, as shown clearly in Figs. 13' and 17, and serving to break the circuit each time the shift-key is depressed for the purpose of moving the carriage to another case po- 'sition. The arms 50 and 52 are independ ent, the former being always in engagement 7 with the contact 47, excepting when operatedlon by the shift-key and the latter being adapted to be swun on its pivot either to close or open the circuit through the machine when the arm 52 is out of engagement with contact '46 as shown in Fig. 15, the 

